Spanner



Dec. 1924- 1,517,557

A.: HALIN SPANNER Filed April 4 1 22 Patented lEec. 2?,

it? ll AUGUSTE HALIN, OF I-IEBSTAL, NEAR LIEGE, BELGIUM.

SPANNER.

Application filed. April 4,

To all whom it may concern:

Be it known that I, AUGUsTn HALI a subject of the King of Belgium, residing at Herstal, near Liege, Belgium, have invented certain new and useful Improvements in Spai'mers, of which the following is a specification, reiterence being had therein to the accompanying drawing.

The present invention has for object a spanner with movable jaws designed to be operated by one hand and to permit nuts and the like, diflicult of access, to be operatively engaged in a ready manner.

This spanner comprises two jaws one of which is guided in the other, which jaws are each actuated by a lever; one lever serves for the manipulation of the spanner and forms the operating lever whilst the other lever serves to effectthe opening or closing of the spanner, that is to say, the separation or closing of the jaws.

The annexed drawing shows one form of carrying out the invention:

Figure 1 is a front view of the spanner showing the various parts in the positions which they assume when the jaws are separated to engage operatively a member 0., here shown as a square nut.

Figure 2 is a section on line A,B of Figure 1.

Figure 3 is a front view of the head of the spanner in the closed-up position.

Figure 4 is a front view of a pinion which forms one of the elements of the spanner.

Figure 5 shows front and side views of the articulated jaw.

Figure 6 shows sliding jaw.

The spanner shown consists of a jaw 1 provided with a guiding rib 8, along which the jaw 2 can slide by means of the groove 3 so as to cause the approach or separation of the two jaws. The jaw 2 is fitted on the underside with a toothed rack 4: engaged by the toothed head or part-pinion 5 of the main lever or handle 6. This handle is adapted to turn around the cylindrical part of an axis or pivot 7. The pivot 7 is so shaped at its cylindrical extremity (see Figure 2) that the corresponding perforation. 17in the cheek plate of the jaw 1 (see Figure 5) affords a seating therefor. Upon its other extremity 14 which is of square or non-circular section (Figure 2) there is keyed or otherwise rigidly secured a driving pinion 9 fitted with a toothed portion 12;

front and side views of the 1922. Serial No. 549,536.

for that purpose a square or non-circular section hole 16 (see Figure 4) may be provided to fit the square end 1a. The extremity of the square end 1% passes through the opposite cheek plate of the jaw 1, by means of a hole 18 of corresponding shape, with which hole this cheek plate is provided: see Figures 2 and 5. i I

A control lever 8 fulcrumed at 11 upon the lever-handle 6 is furnished wit-h a spring 10 at its lower part whilst its upper portion or head is provided with a toothed portion 13 engaging the aforesaid toothed portion 12 of the driving pinion 9 rigidly secured as above stated to the pivot 7. The spring 10 interposed between the levers 6 and 8 tends to bring the jaws 1 and 2 together so that the spanner when not in use assumes the position of the parts shown in Figure 3.

In normal position, the parts of the span nor are as represented in Fig. 3. To open. the jaws the operator grips the end of handle 8 against the pressure of spring 10, thereby rotating the handle 8 about pivot 11 and through the engagement of the toothed end of handle 8 with pinion 9 rotating the pivot pin 7 with reference to handle 6. Since jaw 1 is rigid with pin 7, this operation causes said jaw to be rotated about the axis of pin 7 with reference to handle 6. Since jaw 2 is carried by jaw 1, the movement of the latter about the axis of pin 7 causes the rack on jaw 2 to mesh with the part pinion on handle 6, which may be regarded as relatively stationary, and so causes jaw 2 to move away from aw 1 to a position such as shown in Fig. 1.

The nut or other object a (see Figure 1) can then be introduced between the jaws which latter will engage the nut (4 by the action of the spring 10 as soon as pressure of the hand is removed from the controllever 8. The spanner is now ready for use and by acting on the lever handle 6 in the direction of the arrow X the nut a can be turned in the manner of an ordinary spanner.

lVhat I claim is 1. A spanner comprising two jaws slidable one on the other. a pivot fixed to one of said jaws, a lever rotatable on said pivot. and operatively engaging the other jaw, a toothed wheel fixed on said pivot, and a second lever pivoted on the first lever and provided with gear teeth meshing with said toothed wheel.

In a spanner, the combination of a pair oi jaws adapted to slide one inside the other, a pair of parallel cheek plates secured to the outer jaw provided With guides for the inner jaw, a pivot secured between said cheek plates, said pivot having a cylindrical portion and a square portion, rack teeth secured to said inner jaw, a lever pivoted on said cylindrical portion provided With teeth engaging said rack teeth, a part pinion secured on said square portion, and a second lever pivoted to the first lever and provided with teeth at its inner end engaging said part pinion.

3. A spanner comprising a lever handle, a control-lever pivoted on said lever-handle, a toothed portion resembling a part-pinion provided at top of said lever-handle, a spanner-jaw having a toothed rack engaged by said part-pinion, a second spanner-jaw in which said first jaw is adapted to slide, said. second jaw having parallel cheek-plates, a pivot secured between said cheek-plates, said lever-handle at its part-pinion portion being adapted to turn around said pivot, a second part-pinion rigidly secured upon said pivot and a toothed portion upon the extremity of the control-lever operatively engaging said second part-pinion.

In testimony whereof I hereunto affix my signature.

AUGUSTE HALIN. Witnesses THOMAS BATTA, YVONNE RIGOR. 

